Understanding HTS Chapter 32
HTS Chapter 32 covers Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments and other colouring matter; paints and varnishes; putty and other mastics; inks. Within this area of chemicals and chemical preparations, the product name alone is rarely enough to select a heading. A defensible classification normally requires chemical identity, composition and purity data together with the product form, formulation, intended function and any chapter note governing mixtures or measured doses. Start with a precise commercial description and supporting technical details, then compare the heading wording and relevant section and chapter notes. Also review neighboring chapters when the product has been further processed, combined with other materials or made into a more specific finished article.
Classification factors to review
Chemical identity and composition
Record chemical names, CAS information where available, concentration and every material in a mixture.
Purity and formulation
Separate chemically defined compounds, solutions, mixtures and formulated preparations may fall in different chapters.
Function and presentation
End use, measured doses, retail packaging and specialized functions can control classification of preparations.
